Optimizing the signal-to-noise ratio for direct-detection BOTDA

Sheng Wang; Zhisheng Yang; Marcelo A. Soto; Luc Thévenaz

doi:10.1117/12.2540930

28 August 2019 Optimizing the signal-to-noise ratio for direct-detection BOTDA

Sheng Wang, Zhisheng Yang, Marcelo A. Soto, Luc Thévenaz

Author Affiliations +

Proceedings Volume 11199, Seventh European Workshop on Optical Fibre Sensors; 111992C (2019) https://doi.org/10.1117/12.2540930
Event: Seventh European Workshop on Optical Fibre Sensors, 2019, Limassol, Cyprus

Abstract

The signal-to-noise ratio (SNR) of the measurement for direct-detection Brillouin optical time-domain analyzers is modelled and experimentally validated, with and without the use of optical pre-amplification. Results indicate that preamplification associated with a good-quality photo-detector improves considerably the actual SNR, with only 1.5 dB penalty compared to the ideal shot noise limit.

Citation Download Citation

Sheng Wang, Zhisheng Yang, Marcelo A. Soto, and Luc Thévenaz "Optimizing the signal-to-noise ratio for direct-detection BOTDA", Proc. SPIE 11199, Seventh European Workshop on Optical Fibre Sensors, 111992C (28 August 2019); https://doi.org/10.1117/12.2540930

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